34 lines
785 B
Bash
Executable File
34 lines
785 B
Bash
Executable File
#!/usr/bin/env bash
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VERSION="$1"
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UNSUPPORTED_MSG="$2"
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# this is used to get "clean" integer version number. Examples:
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# `tmux 1.9` => `19`
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# `1.9a` => `19`
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get_digits_from_string() {
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local string="$1"
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local only_digits="$(echo "$string" | tr -dC '[:digit:]')"
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echo "$only_digits"
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}
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tmux_version_int() {
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local tmux_version_string=$(tmux -V)
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echo "$(get_digits_from_string "$tmux_version_string")"
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}
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exit_if_unsupported_version() {
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local current_version="$1"
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local supported_version="$2"
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if [ "$current_version" -lt "$supported_version" ]; then
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exit 1
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fi
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}
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main() {
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local supported_version_int="$(get_digits_from_string "$VERSION")"
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local current_version_int="$(tmux_version_int)"
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exit_if_unsupported_version "$current_version_int" "$supported_version_int"
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}
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main
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